All categories

3 years ago

5(7r - 2) - 12Simplify it out plzz

Mathematics

2 answers:

postnew [5]3 years ago

8 0

Answer:

I think it's 7r-14

Step-by-step explanation:

It says "eliminate redundant parentheses"

Then "subtract the numbers"

And then the solution should be what I put as the answer

sukhopar [10]3 years ago

7 0

Answer:

5(7r - 2) - 12 = 35r - 22

Step-by-step explanation:

First you want to do the mailman (it's what I called it in school) so take 5*7r which is 35r and do 5*(-)2 which is -10. So far the equation looks like this:

35r - 10 - 12

So now you subtract -10 from -12 and since they are both negative numbers it will be -22. So it's 35r - 22

5(7r - 2) - 12

35r - 10 - 12

35r - 22

I hope this helped!!

You might be interested in

Pls help i dont get it much

Doss [256]

Answer:

Fraction Decimal Percent

111/250 = 0.444 = 44.4%

5/100 = 0.05 = 5%

2/3 = 0.66 = 666%

3 0

3 years ago

Explain what it means to express a fraction in simplest form

Fed [463]

The simplest form of a fraction is when the top and bottom cannot be any smaller.

3 0

3 years ago

Read 2 more answers

Pl help is for homwork

HACTEHA [7]

Answer:

Sabrina bought 3 pounds of bananas.

Step-by-step explanation:

Given equations are:

a + b = 8 Eqn 1

0.95a + 1.10b = 8.05 Eqn 2

As we have to find the number of pounds of bananas bought, we will eliminate the variable a from the equation.

Multiplying Eqn 1 by 0.95

0.95(a+b=8)

0.95a+0.95b=7.60 Eqn 3

Subtracting Eqn 3 from Eqn 2

(0.95a+1.10b)-(0.95a+0.95b)=8.05-7.60

0.95a+1.10b-0.95a-0.95b=0.45

0.15b = 0.45

Dividing both sides by 0.15

$\frac{0.15b}{0.15}=\frac{0.45}{0.15}\\b = 3$

Hence,

Sabrina bought 3 pounds of bananas.

3 0

3 years ago

Factoring by grouping 12x^2+11x+2=0

Alex_Xolod [135]

Step-by-step explanation:

(12)(2) = 24 Find 2 numbers whose product is 24 and whose sum is 11 (8 and 3 work)

Rewrite 11x as 8x+3x and factor by grouping:

12x2 + 8x + 3x + 2 = 0

4x(3x+2) + 1(3x+2) = 0

(3x+2)(4x+1) = 0

x = -2/3 or x = -1/4

7 0

4 years ago

Find the x and y intercept of -x+8y=8

xenn [34]

Answer:

x-Int=-8 and y-int=1

Step-by-step explanation:

To find x int set your y=0, so -x+8(0)=8, which simplifies to -x=8. You then divide -1 by both sides to get x-int=-8. Likewise, set x=0 to get -(0)+8y=8. This equals to 8y=8, so you divide both sides by 8 to get y-int=1.

5 0

4 years ago

5(7r - 2) - 12Simplify it out plzz​

5(7r - 2) - 12Simplify it out plzz